What lays down sediment in a new location

wind water and animal

Explanation:

The material moved by erosion is sediment. The agents of erosion lay down sediment in a process called deposition. Deposition builds new landforms. Weathering, erosion, and deposition act together in a cycle that wears down and builds up Earth's surface.

Wind, water, animals

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

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since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.